Oil-press mat



G. OLIVER.

OIL PRESS MAT.

(No Model.)

Patented Junel N. PETER; Phare-Limognpnef. wmlmm nc.

UNITED STATES PATENT OFFICE.

GEORGE OLIVER, OF CHARLOTTE, NORTH CAROLINA.

OIL-PRESS MAT.

SPECIFICATION forming part of Letters Patent No. 320,442, dated June 16, 1885.

Application filed April 16, 1885. (No model.)

To all whom it may concern Beit known that I, GEORGE OLIVER, acitizen of the United States, residing at Gharlotte, in the county of Mechlenburg, State ot' North Carolina, have invented a new and useful Improvement in Oil-Press Cloths, of which the following is a specification.

My improvement relates to oil-press machinery, where the oil-containing substance is pressed in shallow boxes or between plates without the use of hair mats.

The objects of my invention are, Iirst, to prevent the tearing of the press-cloths; second, to prevent the pressecloths sticking to the mealcakes.

I attain the obj ects in the manner illustrated in the accompanying drawings, in which Fig! ure l is a sectional side elevation of two pressboxes with one charge of cotton-seed meats in them ready for pressure. Fig. 2 is a sectional end elevation ofthe same.

In Figs. 1 and 2, aan a represent two perforated plates lying on the top of gratings. b b 1) are spaces .between the gratings. O O O C are the main body of the boxes or plates. D represents a charge of cotton-seed meats inclosed between two press-plates or boxes, ready for the pressure. The bottom side oi' the box or plate above each charge of meats forms the surface against which itis pressed, and the perforated plates a c a a. is the pressing surface on the lower side of the charge of meats. The meats are, however, inclosed in a cloth (shown in Figs. l and 2) by E E E. This cloth, together with the perforated plates et a a c', acts as a strainer through which the oil passes when pressure suiiicient is put upon the meats that are inclosed between the' boxes or press plates in the usual way. Experience has shown that in pressingV oil in boxes or plates of the kind above indicated, where the cloth and perforated plate are used, that if the cloth is made of cotton entirely it splits at the ends ot' the 5 cloth.

Fig. 3 represents aoplan of a cloth spread out, and showing at g g g, Snc., the manner in which cotton cloth splits. Experience has also shown that if the cloths are made ot' wool entirely they tear at the end of the box where the cloth folds over the meats, as at Kin Fig. 1.

Fig. 4 represents a plan of a cloth spread out, and shows at h h 7L, 85o., the manner in which woolen or hair cloths tear. New, in order to overcome the above difficulties, I propose to use a cloth, in combination with a perforated plate and box, as indicated, which cloth shall be make of cotton threads running the longitudinal way, and woolen or hair threads running crosswise and woven in such a mauner that the woolen threads may have most ofthe contact with the perforated plate and with the meats.

Fig. 5 represents a slightlymagnitied sectional end elevationof a piece of the cloth, and Fig. 6 represents a sectional side elevation of such a cloth as I would use on a perforated plate in the press box or plate.

In the two Figs. 5 and 6, L L L show the cotton threads, and m m m m show the woolen or hair threads and illustrate the manner in which they are woven around the cotton threads, giving an outer surface almost or entirely of wool or hair, and the construction allows side expansion ot' the cloth, which is desirable to prevent the splitting above described.

By means of the combination of this kind of cloth with the perforated plate in an Voil-y press box, I obtain a more successful strainer through which the oil can pass while the meats are under pressure than has heretofore been known.

What I claim as my invention is- The combination, in an oil-press box, of a perforated plate, and a cloth woven with cotton threads longitudinally and woolen or hair threads crosswise.

GEORGE OLIVER.

Witnesses:

R. M. MILLER, FREDERICK OLIVER. 

